With a lot of difficult problems ______, the newly-elected president is having a hard time
A.settledB.settlingC.to be settledD.to settle在线课程D
解析：
考查with的复合结构。根据句意，可知新任总统现在日子不好过，说明有许多困难尚未解决。故用不定式表将来。此处应用主动代替被动。